Preform for drain installation



FIG. 1 is a perspective view of a preform for drain installation inaccordance with our design;

FIG. 2 is a top view of the preform for drain installation shown in FIG.1;

FIG. 3 is a bottom view of the preform for drain installation shown inFIG. 1; and,

FIG. 4 is a side view of the preform for drain installation shown inFIG. 1.

The dashed broken lines in the drawings depict portions of the performfor drain installation that form no part of the claim.

CLAIM The ornamental design for a preform for drain installation, asshown and described.